Background
Nowadays, it is very prevalent to use artificial and supplemental light in the greenhouse to maximize production. Optimal control of greenhouse lighting is one of the key techniques in digital agriculture since light is the most important source of energy for plant photosynthesis and a vital signal for plant growth and development. High-pressure sodium (HPS) lamps are used in commercial greenhouses as a supplemental light source above plants resulting in significant radiant heat emission (infrared) in the direct environment.
